You are not logged in.
Pages: 1
Can people please help with the following
The triangle FGH has angle 38 at F, while sides FG and FH have lengths 5.5cm and 4.5cm respectively.
(a) Draw a diagram of the triangle
(b) Find the sizes of all angles and lengths of all sides for the triangle FGH (Would I use the Law of Sine or Law of Cosine or something else?)
(c) Check your answers by using a property of triangles not previously used in (b) (what does it mean by this?)
For the questions below, I don't want the answers, I just want guidance on what parts of Trigonometry to study, so I can solve the following by myself
Consider the function y = 2cos(2x + π) for −3π/4 ≤ x ≤ 3π/4
Follow the steps below to sketch the graph of y.
(a) State the amplitude, period and phase shift in the graph of this function.
(b) Solve y = 2cos(2x + π) for −3π/4 ≤ x ≤ 3π/4 to find the horizontal intercepts (x-intercepts) of the function.
(c) Find the values of x for 3π/4 ≤ x ≤ 3π/4 for which the maximum and the minimum values of the function occur.
(d) State the range of the function.
(e) Using the information obtained in (a)–(d), draw the graph of y = 2cos(2x + π) for −3π/4 ≤ x ≤ 3π/4
Pages: 1